1579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson/* 2579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Copyright (C) 2007 The Android Open Source Project 3579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * 4579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Licensed under the Apache License, Version 2.0 (the "License"); 5579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * you may not use this file except in compliance with the License. 6579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * You may obtain a copy of the License at 7579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * 8579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * http://www.apache.org/licenses/LICENSE-2.0 9579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * 10579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Unless required by applicable law or agreed to in writing, software 11579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * distributed under the License is distributed on an "AS IS" BASIS, 12579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * See the License for the specific language governing permissions and 14579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * limitations under the License. 15579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 16579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 17579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonpackage com.android.dx.dex.code; 18579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 19579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonimport com.android.dx.rop.code.RegisterSpecList; 20579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonimport com.android.dx.rop.code.SourcePosition; 21579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 22579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson/** 23579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Pseudo-instruction which is used to track an address within a code 24579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * array. Instances are used for such things as branch targets and 25579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * exception handler ranges. Its code size is zero, and so instances 26579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * do not in general directly wind up in any output (either 27579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * human-oriented or binary file). 28579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 29579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilsonpublic final class CodeAddress extends ZeroSizeInsn { 30579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** 31579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * Constructs an instance. The output address of this instance is initially 32579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * unknown ({@code -1}). 33579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * 34579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson * @param position {@code non-null;} source position 35579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson */ 36579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public CodeAddress(SourcePosition position) { 37579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson super(position); 38579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 39579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 40579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 41579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 42579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson public final DalvInsn withRegisters(RegisterSpecList registers) { 43579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson return new CodeAddress(getPosition()); 44579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 45579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 46579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 47579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 48579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson protected String argString() { 49579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson return null; 50579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 51579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson 52579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson /** {@inheritDoc} */ 53579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson @Override 54579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson protected String listingString0(boolean noteIndices) { 55579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson return "code-address"; 56579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson } 57579d7739c53a2707ad711a2d2cae46d7d782f06Jesse Wilson} 58